vim.cmd [[
" ==================== Undotree 文件历史修改记录 ====================
let g:undotree_DiffAutoOpen       = 1
let g:undotree_SetFocusWhenToggle = 1
let g:undotree_ShortIndicators    = 1
let g:undotree_WindowLayout       = 2
let g:undotree_DiffpanelHeight    = 8
let g:undotree_SplitWidth         = 35
]]
